The key to understanding the message of Revelation is found in this intricate relationship between the seven "letters" and the rest of the book, with the visions of Revelation 4-22 building on, fleshing out, and driving home the messages to the seven churches in Revelations 2-3. In the end, revelation proves to be not primarily a guide to how things are going to unfold at the end of the age, but rather a profound call to a life of radical devotion to Jesus regardless of one's circumstances.